This used Parker Daedal 4505 Side Drive, Square Face, Single-Axis Stage is in good physical condition. The stage measures 2.62 inches wide and side-driven. It has a 1 inch Clear Aperture in the middle and has (8) threaded taps for #10-32 screws . This unit does not come with a micrometer. Actual item shown. Sold as pictured. Linear Motion Guideway, Slide Unit / Rail Block.